---
product_id: 54844328
title: "Air Purifier for Home Large Room Up to 3,120ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, Auto & Sleep Mode, Timer, 5yr Warranty, Airmega 400(G)"
brand: "coway"
price: "¥312999"
currency: JPY
in_stock: true
category: "Coway"
url: https://www.desertcart.jp/products/54844328-air-purifier-for-home-large-room-up-to-3-120ft²
store_origin: JP
region: Japan
---

# Smart & Sleep modes 99.97% filtration efficiency 3120 sq.ft coverage Air Purifier for Home Large Room Up to 3,120ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, Auto & Sleep Mode, Timer, 5yr Warranty, Airmega 400(G)

**Brand:** coway
**Price:** ¥312999
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate your air game—because your space deserves the freshest vibe.

## Quick Answers

- **What is this?** Air Purifier for Home Large Room Up to 3,120ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, Auto & Sleep Mode, Timer, 5yr Warranty, Airmega 400(G) by coway
- **How much does it cost?** ¥312999 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/54844328-air-purifier-for-home-large-room-up-to-3-120ft²)

## Best For

- coway enthusiasts

## Why This Product

- Trusted coway brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Adaptive Smart Mode:** Automatically adjusts fan speed based on real-time air quality for peak efficiency and energy savings.
- • **Whisper-Quiet Sleep Mode:** Reduces noise and power consumption when you need restful, uninterrupted sleep.
- • **Eco-Friendly Energy Saver:** Eco Mode powers down the fan after 30 minutes of clean air, cutting energy use without sacrificing performance.
- • **Ultra-Precise HEPA Filtration:** Captures 99.97% of microscopic particles down to 0.3 microns, including allergens, smoke, and pet dander.
- • **Breathe Freely in Massive Spaces:** Cleans up to 3,120 sq.ft in just 60 minutes—perfect for open-plan living or large home offices.

## Overview

The Coway Airmega 400(G) is a powerhouse air purifier designed for large rooms up to 3,120 sq.ft. Equipped with a washable pre-filter, activated carbon filter, and HEPA filter, it removes 99.97% of particles as small as 0.3 microns, including allergens, smoke, and odors. Smart and eco modes optimize energy use by adjusting fan speeds and powering down when air quality is maintained. Certified by CARB, ETL, and Energy Star, it operates quietly at 22 dB and comes with a 5-year warranty, making it a reliable, high-performance solution for healthier indoor air.

## Description

1.Airmega Air Purifiers, tested by KCL(Korea Conformity Laboratories), demonstrate effective capture of 0.01㎛ ultra-fine particles and allergens according to Korea Air Cleaning Association standards (SPS-KACA 002-132:2022 Modified). Performance may vary in your environment. 2.Our HEPA filter complies with IEST-RP-CC007 standards at speed level 1 as tested by SGS (Société Générale de Surveillance). SGS's test report only reflects SGS's evaluation of the sample and does not reflect the evaluation of the batch of goods from which the sample was taken. 3.Tested for acetic acid reduction rate by KCL(Korea Conformity Laboratories) in a chamber under JEM 1467: 2015 conditions for 60 minutes. Results may vary in different environments. 4.Activated Carbon Filter was tested by KCL(Korea Conformity Laboratories) and shown to reduce various harmful gases and odors within 30 minutes, including key VOCs and pollutants. Results are based on lab conditions and may differ in actual use. 5.Allergen filter media was tested by Nichinichi Pharmaceutical to measure allergen concentration using ELISA over a 24-hour reaction period. The test reflects the filter media's performance under laboratory conditions and results may vary in actual product usage environments. 6.Tested reduction rate of ammonia and hydrogen sulfide for 30 minutes under EL608:2023 condition by KCL(Korea Conformity Laboratories). Results may vary in different environments. 7. Tested by Intertek, reduction rates of Naphthalene, Sulfur Dioxide, and Nitrogen Dioxide were tested following JEM-1467:2015 standards. Actual performance may vary depending on the living environment. 9.Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022. The test was conducted with Methyl mercaptan, Isovaleraldehyde, Isovaleric acid in a 1.0±0.1 m3 chamber with a test time of 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of over 99.5% was achieved. Results may vary depending on the actual usage environment. 10.Tested by the Guangzhou Institute of Microbiology, exposed the filter media to protein solutions for 24 hours under ISO 4333-2022 standard. The results showed strong reduction performance: >99.79% for pollen, >99.60% for dog allergen, >99.90% for cat allergen, and >99.80% for dust mites matter allergen. Actual results may vary depending on room size, airflow, and pollutant levels. 11.Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022. The test was conducted in a 1.0±0.1 m³ chamber for 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of >99.5% was achieved for Formaldehyde and Toluene in 60 minutes. Results may vary depending on the actual usage environment. 12.Tested by Intertek, the test was conducted in a 1.0 m³ chamber for 120 minutes resulting a 99.9% removal rate on sulfur dioxide, nitrogen dioxide, and naphthalene. Results may vary depending on the actual usage environment.

## Features

- [Coverage] Designed to clean spaces up to 3,120 sq. ft. in 60 minutes.
- [HyperCaptive Filtration System] Combination of a pre-filter, deodorization filter, and HEPA Filter reduces 99.97% of 0.3 micron particles, including pollen and other allergens.
- [Smart Mode] With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality; That means your unit is energy efficient without compromising effectiveness.
- [Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected.
- [Sleep Mode] When the Airmega's built-in light and pollution sensors detect that the room has been dark and the air clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0722YZ1R1 |
| Best Sellers Rank | #50,251 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #91 in HEPA Filter Air Purifiers |
| Brand Name | Coway |
| Color | Graphite |
| Contaminant Filtration Capability | Dust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs) |
| Control Method | Touch |
| Controller Type | Touch |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,312) |
| Filter Class | HEPA, Activated Carbon |
| Filter Type | HEPA Filter, Active Carbon Filter, Pre-Filter |
| Floor Area | 3120 square_feet |
| Global Trade Identification Number | 00826439000219 |
| Included Components | Air Purifier, Filter Set, User Manual |
| Item Dimensions D x W x H | 14.8"D x 14.8"W x 22.8"H |
| Item Type Name | HEPA Air Purifier |
| Item Weight | 24.7 pounds |
| Manufacturer | Coway |
| Model Number | AP-2015F(G) |
| Noise Level | 22 db |
| Number of Packs | 1 |
| Part Number | AP-2015F(G) |
| Particle Retention Size | 0.3 micron |
| Power Source | Corded Electric |
| Special Features | Air Quality Monitor, Eco Mode, Filter Life Indicator, Smart Mode, Timer |
| Specification Met | CARB Certified, ETL Certified, Energy Star Certified |
| UPC | 826439000219 |
| Unit Count | 1 Count |
| Warranty Description | 5 year manufacturer's limited warranty |
| Wattage | 66 watts |

## Product Details

- **Brand:** Coway
- **Color:** Graphite
- **Item Weight:** 24.7 pounds
- **Power Source:** Corded Electric
- **Product Dimensions:** 14.8"D x 14.8"W x 22.8"H

## Images

![Air Purifier for Home Large Room Up to 3,120ft², Washable Pre-Filter and HEPA Filter for Smoke, Allergies, Pet Dander, Odor, AQI, Auto & Sleep Mode, Timer, 5yr Warranty, Airmega 400(G) - Image 1](https://m.media-amazon.com/images/I/81gVgu8vT-L.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- COWAY Air Purifiers for Home Large Room Up to 3,120ft², 2 Sets of Washable Pre-Filters and True HEPA Filters for Smoke, Allergies, Pet Dander, Odor, AQI, Auto & Sleep Mode, Timer, 5yr Warranty, 400(G)
- Coway Airmega AP-1512HH(W) True HEPA Purifier with Air Quality Monitoring, Auto, Timer, Filter Indicator, and Eco Mode, 16.8 x 18.3 x 9.7, White

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-13*